#include <stdio.h>



//求n的阶乘 1*2*3 factorial
long factorial(int n)
{
    if(n == 0 || n == 1){
        return 1;
    }else{
        return factorial(n-1) * n; // 递归调用
    }
}

int main() {
//    int a;
//    printf("Input a number: ");
//    scanf("%d", &a);
//    printf("Factorial(%d) = %ld\n", a, factorial(a));
//int top =0;
//    scanf("%d", &top); //采用头插法建立每个顶点的邻接表
////printf("%d", ++top);
//printf("%d", top++);
//    return 0;
    int Low = 1, High = 10, Mid;
    Mid = (Low+High)/2;
    printf("%d", Mid);
}